"Mon, 20 Jan 2025 10:02:21"
Convert date and time to unixtime.
Another datetime format string at UTC
YYYYMMDD
20250120
Only TIME
10:02:21
General datetime
2025-01-20 10:02:21Z
For Database
2025-01-20 10:02:21
For HTTP1.1
Mon, 20 Jan 2025 10:02:21 GMT